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Authors
Huo, Ji-wen
Luo, Tian-you
He, Xiao-qun
Gong, Jun-wei
Lv, Fa-jin
Li, Qi
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Funding
Funding for this research was provided by:
Chongqing Science and Technology Commission (cstc2017jcyjAX0281, cstc2016shms-ztzx10002)
Chongqing Health and Family Planning Commission (2022MSXM147)
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Article History
Received: 10 September 2021
Revised: 19 October 2021
Accepted: 8 November 2021
First Online: 6 January 2022
Declarations
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: The scientific guarantor of this publication is Qi Li.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: This study and all its protocols were approved by the ethics committee of our institute, written informed consent was not required for this study due to the retrospective nature.
: Institutional Review Board approval was obtained.
: • retrospective• case-control study• performed at one institution
